Car-underframing



W. M. RYAN.

CAR UNDERFRAMING.

APPUcATxoN FILED nEc.29,1919.

Patented June 29, 1920.

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WI M. RYAN.

CAR UNDERFRAMING.

APPLICATION 'FILED DEc.29, I9I9.

Patented J une 29, 1920.

2 SHEETS-SHEET 2.

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IIZCVIIIIIIWIIIIIHIIIIL'WH H H H .n H H HIIIIIIIIIIUIIIL UNITED STATES PATENT oEFicE. i

WILLIAM M. RYAN, or 'cHicAGo,`II;L1NoIs, AssiGNoR 'ro THE Y. A CORPORATION or MAINE.

RYAN VCAR COMPANY,

` oAR-UNDERF'RAMING.

To all whom it mcyoonoern:

Be it knownl that I, WILLIAM M. RYAN, a citizen ofthe United States of America, and resident ofy Chicago, county of Cook, and State of Illinois, have invented ycertain new and useful Improvements in 'CanfUnde're framing, of which the following isa specification, and which are illustrated in the accompanyingV drawings, forming a part thereof. v f Y rIlhe invention relates to underframingfor railway cars and has asan object the provision of a structure that may be placed under existing cars which` need reinforcing and which .will reliably withstand the stresses arising from draft and buff, as well as stiffen the frame ofthe car.

An illustrative embodiment of the invention is shown inthe accompanying drawings in whichm Figure 1 is a plan view partly broken away;

Figs. 2 and 3 are detail vertical transverse sections on lines 2`2 and 3-3 respectively of Fig. 4, but drawn to a larger scale and showing more of the bolster than does Fig. 4; f l

Fig. 4 is a detail plan viewofrone end of the structure of Fig. 1, drawn to an enlarged scale;

Fig. 5 is a detail vertical section on line 5-5 of Fig. 4, and p Fig. 6 is a detail side view of the end of a channel iron showing a step in manufacture.

The invention disclosed in this applica* tion is an improvement on that disclosed in an application for patent filed by myself September 16, 1919, Serial No.l 324,197, for

sub sills and draft arms.

The usual bolsters of an existing car are indicated at 10 and the sills of such a car at`11. The sills 11 may be, and in cars which need reinforcing usually are, of wood. Draft arms provided by the invention are indicated at 12, 13, and 14,` 15, sub sills at 16, 17. The draft arms are provided with draft lugs 18 and buiiing lugs 19, with holes, as 20, to receive bolts, not shown, for attachment to the wooden sills 11.

The draft arms are shown as extended through opening in the bolster and as provided with a shoulder, as 21, adapted to abut against the bolster to transfer buiiing stresses to the bolster. Thedraft arms are l27 and to the "Specification of Letters geteilt. Patentgd June 29, 1920,

Application filedv December 29, 1919.l Serial No. 347,984. Y

channel-shaped in cross section and are i flange 24 of the draft arm in Fig. 5 byrmeans of which the upper surface of the flange -24 and of the upper flange. 25 of the sub sill 16 may be brought into a common: plane for reception of gusset plate 26 which'is shown as. riveted to tlie'two flanges 24and 25- at upper iiange of the bolster at 28, 29. f i 'The ends of the .sub sills 16, 17, are shown reduced in `width from apoint 30, F ig; 5., `This reduction in .Y width may be readily .produced by removal of a V,-shaped piece,

as shown in Fig. 6, and the closure of the gaplby bending the lower side upwardly, as indicated by thesdotted lines in. saidfigure. Preferably, a row of rivet holes, as 31, 32, is provided on each side of the gap which rows of holes will be parallel when the reduction of width is completed and through which holes the rivets 22 may be passed.

With the ends of sills 16 and 17 reduced as described and the parts assembled as shown, a gusset plate 33 may be secured to the inclined portions of both sill flanges and to the lower flange of the bolster. A bottom cover plate, as 34, connecting the lower flanges of sills 16 and 17 may abut the gusset plate 33 at the point 30. A gusset plate 35 is shown connecting the bottom anges of the draft arms and as connected to the upper surface of the bottom flange of the bolster as at 36.

It is necessary to cut the gusset plates out at their central portions to permit their ends to extend forwardly for attachment to the bolster. To preventrdanger of tearing which would be caused by an angle, the cut out portions are formed on curves, as shown at a7,k 38, 39.

I claim as my invention:

1. In an underframe for railway cars, in combination, a pair of body holsters, channel shaped sub sills extendingbetween the bolsters, channel shaped draft arms of less width than said sills extending through the holsters and nesting with and connected to the sills, portions of the lower flanges of the sills being upwardly inclined whereby the width of the sills at the ends is reduced, and a gusset plate secured to said inclined portions of the sills and to the bolster.

2. In an underframe for railway cars, in combination, a body bolster, sub sills, draft arms, gusset plates connecting the sills together and the draft arms together and each to the bolsters, said gusset plates being cut away at their center' portions to provide for-v wardly extending arms, the angles between said arms and said central portion being rounded to prevent tearing.

3. In an underframe for cars, in combination, a bolster, a draft arm extending through the bolster, a sub sill of greater Vertical dimension than the arm secured to the latter, the lower margin of the sill adjacent the bolster being upwardly inclined, and a gusset plate attached to the inclined portion and to the bolster.

tion, a bolster, a sub-sill extending to the f bolster, a draft arm having a portion of less widthV than thevsub-sill extending'` through y the bolster, the end of theisub-sill being repiece and closure of the gap in such a manner that theV resulting joint is parallel ywith through the projection of the draft arm.

6. In an underframe for cars, in combination, a bolster, l a draft arm ,extendingV Vduced in width by removal of a V-shaped through the bolster, a sub sill of greater vertical dimension than the arm 'secured' to the latter, the lower margin of the sill adjacent fthe bolster being upwardly inclined,a gus-f set plate attached to the inclined portion and to thebolster, and a gussetplate attached to the draft arm and to the bolster.

7. In an underframe-for cars, in veombina- Y tion, a bolster having an I section, `sub sills and draft arms extending in opposite directions -from the bolster gussetplates securedY to the upper'and lower margins respectively of the subsills and to the lower margin of the draftV arms, said gusset plates being each secured to inwardly facing surfaces of the flanges of the bolster.

WILLIAM vM; RYAN.

35 the sub-sill, and a row of rivetson each side Y of the joint passing through the sub-silland f 

